What was found in ZIP 77656
The level at this ZIP's main supplier, the highest level anywhere in it, the EPA limit for each, and where the figure comes from.
| Contaminant | Level vs EPA limit | Suppliers | Source |
|---|---|---|---|
| Fluoride | 645 µg/L 16% of the EPA limit 4000 µg/L Main supplier: CITY OF SILSBEE · 10,026 people · 2017 | 2/2 | SYR4 |
| Barium | 488.75 µg/L 24% of the EPA limit 2000 µg/L Main supplier: CITY OF SILSBEE · 10,026 people · 2017 | 2/2 | SYR4 |
| Copper | 245.6 µg/L 19% of the EPA limit 1300 µg/L Main supplier: CITY OF SILSBEE · 10,026 people · 2019 | 2/2 | SYR4 |
| Nitrate | 20 µg/L 0.2% of the EPA limit 10000 µg/L Main supplier: CITY OF SILSBEE · 10,026 people · 2019 | 2/2 | SYR4 |
| Nitrate-Nitrite | 20 µg/L 0.2% of the EPA limit 10000 µg/L Main supplier: CITY OF SILSBEE · 10,026 people · 2015 | 2/2 | SYR4 |
| Xylenes, Total | 1.57 µg/L 0% of the EPA limit 10000 µg/L Main supplier: CITY OF SILSBEE · 10,026 people · 2019
Highest in the ZIP: 16.65 µg/L — NORTH HARDIN WSC · 7,755 people · 2019 | 2/2 | SYR4 |
| Lithium | 11.8 µg/L No EPA limit set Main supplier: CITY OF SILSBEE · 10,026 people · 2025
Highest in the ZIP: 13.6 µg/L — NORTH HARDIN WSC · 7,755 people · 2023 | 2/2 | UCMR-5 |
| Gross Alpha, Excl. Radon And U | 9.5 pCi/L 63% of the EPA limit 15 pCi/L Main supplier: CITY OF SILSBEE · 10,026 people · 2019 | 2/2 | SYR4 |
| Gross Beta Particle Activity | 6.62 pCi/L No EPA limit set Main supplier: CITY OF SILSBEE · 10,026 people · 2019 | 2/2 | SYR4 |
| Lead | 2.272 µg/L 15% of the EPA limit 15 µg/L Main supplier: CITY OF SILSBEE · 10,026 people · 2019
Highest in the ZIP: 6.147 µg/L — NORTH HARDIN WSC · 7,755 people · 2019 | 2/2 | SYR4 |
| Selenium | 5.395 µg/L 11% of the EPA limit 50 µg/L Highest in the ZIP: NORTH HARDIN WSC · 7,755 people · 2019 | 1/2 | SYR4 |
| Arsenic | 4.085 µg/L 41% of the EPA limit 10 µg/L Main supplier: CITY OF SILSBEE · 10,026 people · 2017
Highest in the ZIP: 5.35 µg/L — NORTH HARDIN WSC · 7,755 people · 2019 | 2/2 | SYR4 |
| Chloroform | 5.16 µg/L No EPA limit set Main supplier: CITY OF SILSBEE · 10,026 people · 2019 | 2/2 | SYR4 |
| Bromodichloromethane | 4.32 µg/L No EPA limit set Main supplier: CITY OF SILSBEE · 10,026 people · 2019 | 2/2 | SYR4 |
| TTHM | 3.95 µg/L 4.9% of the EPA limit 80 µg/L Main supplier: CITY OF SILSBEE · 10,026 people · 2019 | 2/2 | SYR4 |
| Combined Radium (-226 And -228) | 3.64 pCi/L 73% of the EPA limit 5 pCi/L Main supplier: CITY OF SILSBEE · 10,026 people · 2019 | 2/2 | SYR4 |
| Combined Uranium | 3.2 µg/L 11% of the EPA limit 30 µg/L Highest in the ZIP: NORTH HARDIN WSC · 7,755 people · 2018 | 1/2 | SYR4 |
| Dibromochloromethane | 2.5 µg/L No EPA limit set Main supplier: CITY OF SILSBEE · 10,026 people · 2019 | 2/2 | SYR4 |
| Ethylbenzene | 1.94 µg/L 0.3% of the EPA limit 700 µg/L Highest in the ZIP: NORTH HARDIN WSC · 7,755 people · 2019 | 1/2 | SYR4 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: CITY OF SILSBEE · 10,026 people · 2025 | 2/2 | LCR |
Each bar shows the measured level as a share of the EPA limit: green is
well under, amber is close to it, red is over. For lead and copper the
limit applies to exactly the 90th-percentile figure shown, so red there
means a real exceedance. For everything else the limit applies to a
running annual average while the figure is the 95th percentile of the
system's samples — over 100% is worth reading, but is not by itself a
violation.
Formal violations are listed separately.
Water suppliers serving ZIP 77656
| Supplier | State | Population served |
|---|---|---|
| CITY OF SILSBEE | TX | 10,026 |
| NORTH HARDIN WSC | TX | 7,755 |
Frequently asked questions about ZIP 77656 tap water
Is the tap water in ZIP 77656 safe to drink?
EPA testing detected 20 contaminants across the water suppliers serving ZIP 77656. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and your utility's annual Consumer Confidence Report for the official status.
Which water suppliers serve ZIP 77656?
2 public water suppliers report EPA drinking-water monitoring for ZIP 77656. Each is listed above with its population served.
What contaminants are in ZIP 77656's water?
EPA monitoring detected Fluoride, Barium, Copper, Nitrate, Nitrate-Nitrite, and others across this ZIP's suppliers. The full list with levels and sources is above.